This is the universal build of Kinnu - General Knowledge 4.2.1. It contains native libraries for every CPU architecture (arm64-v8a, armeabi-v7a, x86, x86_64), so it installs on any Android device. The trade-off is size — it's larger than per-architecture variants. Pick this one if you're unsure which CPU your phone has, or if you plan to share the APK with multiple devices.
File size: 64.8 MB • Min Android: 28 • Target Android: 36 • Version code: 421 • Framework: Native (Java/Kotlin) • Permissions: 21
Screenshots
File Information
| Package Name | xyz.kinnu |
|---|---|
| Version Name | 4.2.1 |
| Version Code | 421 |
| Architecture | Universal |
| Min Android Version | Android 28 (API 36) |
| Main Activity | xyz.kinnu.app.MainActivity |
| Framework | Native (Java/Kotlin) |
| File Size | 64.79 MB |
| Signature (SHA1) | 3F4D71A94B3F6392616528B812B15A674D6EB9B5 |
| File Hash (SHA256) | 5954123362a4f4b942430776ad585935ad9d7e01fd92c8bb59b29e4756030297 |
App Description
We built Kinnu to give everyone the power to learn anything they want to, whatever their goals.
With Kinnu you can:
🌟Follow your curiosity
🙋♂️Become the most interesting person in the room
🧠Never forget what you’ve learned with our Memory Shield technology
🤦Find a cure to doomscrolling on social media
Our microlearning app harnesses cognitive science to help you build lasting knowledge across many domains. It’s the product of several years of research from experts in the science of learning.
Popular courses:
🧠 Psychology: Mental Health, Positive Psychology, Superpower Learning, Cognitive Biases
🏆 Lifeskills: Personal Finance, Persuasion, Communications
🏋️♀️ Health: Science of Sleep, Science of Exercise, Healthy Habits
🍄 Science: Laws of Physics, Fungi, Astronomy, Quantum Physics, Chemistry, Zoology
🏛️ History: World History, Ancient Civilizations, Near Modern Civilizations, Rome
🤖 Technology: Artificial Intelligence, Generative AI, Cybersecurity, Data Science
📚 Literature: Poetry, Folklore, 10 Great Novels, Shakespeare
🦕 Absolutely Random: Dinosaurs, Greek Mythology, Secret Societies and Cults, Video Games
Product features:
• Bite-sized, expert edited content
• Memory Shield technology – a new method to never forget what you’ve learned
• Highly addictive gamified learning sessions
• Community votes on where to take the app next
• Track your progress and watch your mind grow with the Knowledge Bank
• Super clean design that makes daily learning a joy
• Map based design to explore content and conquer new areas
• Interactive, adaptive questions and games to refresh and retain your knowledge.
• Audio version of all content to learn on the go
What our users say about us:
• “Arguably the most underrated app in the entire play store.”
• “Literally feel myself getting smarter using this app… the questions wire stuff to my brain when I do the smart session every day.”
• “Learning has never been this fun. Engaging, interesting, diverse. Kinnu has it all.”
• “Fun, easy to use. Super fun to have short little bites of education on tons of interesting topics.”
• “It’s amazing, and it’s enhancing my life.”
Do you have an idea about how we could make our app and its content even better? Email us at
support@kinnu.xyz
- we listen, and we hear you.
With Kinnu you can:
🌟Follow your curiosity
🙋♂️Become the most interesting person in the room
🧠Never forget what you’ve learned with our Memory Shield technology
🤦Find a cure to doomscrolling on social media
Our microlearning app harnesses cognitive science to help you build lasting knowledge across many domains. It’s the product of several years of research from experts in the science of learning.
Popular courses:
🧠 Psychology: Mental Health, Positive Psychology, Superpower Learning, Cognitive Biases
🏆 Lifeskills: Personal Finance, Persuasion, Communications
🏋️♀️ Health: Science of Sleep, Science of Exercise, Healthy Habits
🍄 Science: Laws of Physics, Fungi, Astronomy, Quantum Physics, Chemistry, Zoology
🏛️ History: World History, Ancient Civilizations, Near Modern Civilizations, Rome
🤖 Technology: Artificial Intelligence, Generative AI, Cybersecurity, Data Science
📚 Literature: Poetry, Folklore, 10 Great Novels, Shakespeare
🦕 Absolutely Random: Dinosaurs, Greek Mythology, Secret Societies and Cults, Video Games
Product features:
• Bite-sized, expert edited content
• Memory Shield technology – a new method to never forget what you’ve learned
• Highly addictive gamified learning sessions
• Community votes on where to take the app next
• Track your progress and watch your mind grow with the Knowledge Bank
• Super clean design that makes daily learning a joy
• Map based design to explore content and conquer new areas
• Interactive, adaptive questions and games to refresh and retain your knowledge.
• Audio version of all content to learn on the go
What our users say about us:
• “Arguably the most underrated app in the entire play store.”
• “Literally feel myself getting smarter using this app… the questions wire stuff to my brain when I do the smart session every day.”
• “Learning has never been this fun. Engaging, interesting, diverse. Kinnu has it all.”
• “Fun, easy to use. Super fun to have short little bites of education on tons of interesting topics.”
• “It’s amazing, and it’s enhancing my life.”
Do you have an idea about how we could make our app and its content even better? Email us at
support@kinnu.xyz
- we listen, and we hear you.
Download Kinnu - General Knowledge APK
Fast, free and safe download.
APK Permissions 21
- android.permission.ACCESS_ADSERVICES_AD_ID
- android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- android.permission.ACCESS_COARSE_LOCATION
- android.permission.ACCESS_FINE_LOCATION
- android.permission.ACCESS_NETWORK_STATE
- android.permission.ACCESS_WIFI_STATE
- android.permission.FOREGROUND_SERVICE
- android.permission.FOREGROUND_SERVICE_DATA_SYNC
- android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK
- android.permission.INTERNET
- android.permission.POST_NOTIFICATIONS
- android.permission.RECEIVE_BOOT_COMPLETED
- android.permission.USE_BIOMETRIC
- android.permission.USE_FINGERPRINT
- android.permission.WAKE_LOCK
- android.permission.WRITE_EXTERNAL_STORAGE
- com.android.vending.BILLING
- com.google.android.c2dm.permission.RECEIVE
- com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- com.google.android.gms.permission.AD_ID
- xyz.kinnu.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
APK Verified
The cryptographic signature guarantees that the file is safe to install and was not tampered with in any way.
Frequently Asked Questions about Kinnu - General Knowledge APK
This is the universal variant — a single APK that contains native libraries for every CPU architecture. It installs on any Android device but is larger than per-architecture variants.
Yes — the APK's signature has been cryptographically verified against the publisher's signing key. The SHA-256 hash is shown in the File Information panel so you can independently confirm the file matches the original release.
Android 28 (API level 36) or newer. Older devices will refuse the install.
Install a free app like 'CPU-Z' or 'Droid Hardware Info' from the Play Store and look at the ABI / Instruction Set row. Most phones made after 2017 are arm64-v8a; if in doubt, download the universal variant.
All variants are functionally identical — same features, same version. They differ only in which CPU architectures the native code is compiled for, and (sometimes) which screen densities the included graphics target. Pick the one that matches your device for the smallest install size, or pick 'Universal' if you're unsure.